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  1. C

    Guess no body wants to help

    240 volt fuse against 120 volt fuse the 240 volts means that the max voltage across the fuse that it is designed to operate at is 240 volts now in the uk we would not put a fuse in that was designed for 120 volts where 240 volt was specified in the above case a fuse with a higher voltage...
  2. C

    Guess no body wants to help

    just checked the current draw from an old tube book el34 is 1.5 amps times 4 valves = 6 amps ecc83 0.15 amps times 4 = 0.6 amps total amps 6.6 amps (valve 1 the first valve in the chain gets its heater current solid state) but when you switch on from cold you get a surge voltage...
  3. C

    hello from south east london

    cheers for the welcome but theres got to be someone older than me started a bmus at 48 at goldsmiths (got it) never got a job in music anyway you get a student card with your picture on it one weekend i went down to Canterbury Cathedral where you get a student discount at entry nop full...
  4. C

    Guess no body wants to help

    i am new to the site but would like to add a couple of points and if anyone wishes to correct me fell free and please. i am in uk so dont know if the american version differs the jvm410 has 4 *el34 and 5 * ecc83 aka 12ax7 all fuses are 5*20 mm type (250 volts) slowblow at the rear of the...
  5. C

    Hello from Iceland

    welcome to the forum i am new as well some very knowleable people here happy new year also
  6. C

    hello from south east london

    thanks carnada and mike_j
  7. C

    Output transformer broken?

    jon whats your take on this utube video marshall trafo de saida 2 where the guy tests using the variac although agree about the insulation breakdown point new to this so do not know how to put a utube video into this post to see video you have to go to youtube cheers
  8. C

    hello from south east london

    thanks for that thrawn86
  9. C

    hello from south east london

    hi my name is john and i am 56 years young and still play in a family covers band.i got my first 100 watt stack from Mc Cormacks music in Glasgow Scotland late 69/71 ish but gave it away for nothing about 15 years later (big regret).i play a jvm410c just now.this is a great forum with some very...
  10. C

    Questions about rewiring amp

    i can only speak for the uk as a qualified and registered electrician with inspection and test certificate.We are on the 230 volt network (240 actually, european bla bla). some of our sockets are unswitched and some are switched. this switching is single pole only ie the live is switched on /...
  11. C

    A New Marshall Is Born !

    anybody got the schematics for the ma50 ma100 cheers
  12. C

    Confused about an amp.

    dont be confused by the word valvestate these amps are solid state but use only 1 valve in the first stages and no valves anywhere else merry christmas
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